DL-蛋氨酸,DL-甲硫氨酸,甲硫了氨酸

学英语 49 Summer Vacation

Summer vacation Today is the first day of summer vacation. Its wonderful that therere sixty days in the summer vacation. My sister and I began packing our baggage, since we'll have European trip next week. It took me three months to plan this trip,

发表于:2019-01-02 / 阅读(36) / 评论(0)

不用背句型学英语

THIS IS AMERICA - New Year's Traditions

THIS IS AMERICA - December 30, 2002: New Year's Traditions By Jerilyn Watson (THEME) VOICE ONE: On December thirty-first, Americans and other people around the world welcome the New Year. I’m Mary T

发表于:2019-01-02 / 阅读(75) / 评论(0)

This is America

THIS IS AMERICA - Patents and Inventions

THIS IS AMERICA - October 14, 2002: Patents and Inventions By George Grow VOICE ONE: An office of the American government has helped to protect the legal rights of inventors for two- hundred years. Th

发表于:2019-01-02 / 阅读(84) / 评论(0)

This is America

THIS IS AMERICA - Sondheim Celebration

By Jerilyn Watson THIS IS AMERICA -May 13, 2002: Sondheim Celebration VOICE ONE: The John F. Kennedy Center for the Performing Arts in Washington, D.C currently is honoring the work of one of America’

发表于:2019-01-07 / 阅读(96) / 评论(0)

This is America

英语作文-小学 Summer Vacation

英语作文 It is summer vacation and school is out. During summer vacation, most children stay home, watch TV and play with their friends. Some take part in a neighborhood sports program and some go camping. A camp is summer vacation place for childre

发表于:2019-02-01 / 阅读(75) / 评论(0)

英语作文

Planning a Summer Vacation 休假计划

Key Sentences（重点句子） 590．Have you got any idea where you would like to go this summer? 你打算今年夏天去哪儿休假？ 591．I was thinking I might travel to Hangzhou. 我一直打算去杭州度假。 592．I don't think it's a

发表于:2019-02-07 / 阅读(62) / 评论(0)

实用英语

最新学习文章

热门学习文章

热门标签

英语听力 VOA标准英语 VOA 英语歌曲口语听力提高听力材料听力教程英语学习 NPR 英语口语 VOA慢速英语美国国家电台儿童英语 VOA英语小学英语 cnn VOA常速英语标准英语英文歌曲听电影学英语英语单词英文电影慢速英语 CRI 美联社新闻美国有线新闻加州分级澳洲新闻流行歌曲常速英语 ABC新闻快递疯狂英语英语读物听力棚车少年经济学人英语词汇商务英语 VOA双语新闻 BBC 中国电台大学英语 Treasures 加州语文 BBC英语英语听力网站 VOA英语教学词汇万花筒 SSS VOA英语听力 AP 新概念分级英语英语广播听力精选英语播客英文绘本 TED演讲赖世雄英语MP3 CCTV9英语新闻 lesson 英语新闻初中英语学英语英语语法历史上的今天英文广播剧英语游戏原版英语小说英语有声读物书虫英语牛津英语读物访谈录新闻一分钟考研英语英语每日在线听新闻 Us 新概念英语地道英语单词第二册自然百科高中英语 sports 实用英语 MP3听力辛沛沛 ESL英语第一册英语每日一句 unit 新东方 GRE 每日一词 BBC听力

学英语单词

band-limited waveform

basso -relievo, bassorilievo

business accountability

carbonized depth

carnal

cassia bud

centre-to-centre method